Using the cluster_check and yaml_diff tools to check the differences between cassandra.yaml or dse.yaml files.

nodetool ring

Provides node status and information about the ring.

Provides node status and information about the ring.

Synopsis

nodetool <options> ring ( -r | --resolve-ip ) -- <keyspace>

Tarball and Installer No-Services path:

installation_location/resources/cassandra/bin

Table 1. Options

Short

Long

Description

-h

--host

Hostname or IP address.

-p

--port

Port number.

-pwf

--password-file

Password file path.

-pw

--password

Password.

-u

--username

Remote JMX agent username.

-r

--resolve-ip

Provide node names instead of IP addresses.

keyspace

Name of keyspace.

--

Separates an option from an argument that could
be mistaken for a option.

Description

Displays node status and information about the ring as determined by the node being
queried. This information can give you an idea of the load balance and if any nodes are
down. If your cluster is not properly configured, different nodes may show a different ring.
Check that the node appears the same way in the ring. If you use virtual nodes (vnodes), use
nodetool status for succinct output.

Address

The node's URL.

DC (datacenter)

The datacenter containing the node.

Rack

The rack or, in the case of Amazon EC2, the availability zone of the node.

Status - Up or Down

Indicates whether the node is functioning or not.

State - N (normal), L (leaving), J (joining), M (moving)

The state of the node in
relation to the cluster.

Load - updates every 90 seconds

The amount of file system data under the cassandra
data directory after excluding all content in the snapshots subdirectories. Because all
SSTable data files are included, any data that is not cleaned up, such as TTL-expired
cell or tombstoned data) is counted.